What I do if my tire feel like it's coming off

Check to see if the lug nuts are tight and torque properly. If they are good, then you want to have the wheel and tire checked for balance. A tire shop can help. Maybe there is a broken or worn suspension component. Again, have a tire shop inspect the vehicle for you and offer a repair and quote.

What to do when it feels like the tire is coming off? I would stop and not drive it until the problem is fixed.